diff options
Diffstat (limited to 'src/core/client_config')
| -rw-r--r-- | src/core/client_config/README.md | 4 | ||||
| -rw-r--r-- | src/core/client_config/resolvers/sockaddr_resolver.c | 299 | ||||
| -rw-r--r-- | src/core/client_config/resolvers/sockaddr_resolver.h (renamed from src/core/client_config/resolvers/unix_resolver_posix.h) | 6 | ||||
| -rw-r--r-- | src/core/client_config/resolvers/unix_resolver_posix.c | 195 | ||||
| -rw-r--r-- | src/core/client_config/subchannel.c | 11 | ||||
| -rw-r--r-- | src/core/client_config/subchannel.h | 3 |
6 files changed, 321 insertions, 197 deletions
diff --git a/src/core/client_config/README.md b/src/core/client_config/README.md index d0700cfb13..fff7a5af5b 100644 --- a/src/core/client_config/README.md +++ b/src/core/client_config/README.md @@ -60,3 +60,7 @@ unix:path - the unix scheme is used to create and connect to unix domain sockets - the authority must be empty, and the path represents the absolute or relative path to the desired socket + +ipv4:host:port - a pre-resolved ipv4 dotted decimal address/port combination + +ipv6:[host]:port - a pre-resolved ipv6 address/port combination diff --git a/src/core/client_config/resolvers/sockaddr_resolver.c b/src/core/client_config/resolvers/sockaddr_resolver.c new file mode 100644 index 0000000000..74584e7e2c --- /dev/null +++ b/src/core/client_config/resolvers/sockaddr_resolver.c @@ -0,0 +1,299 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <grpc/support/port_platform.h> + +#include "src/core/client_config/resolvers/sockaddr_resolver.h" + +#include <stdio.h> +#include <string.h> +#ifdef GPR_POSIX_SOCKET +#include <sys/un.h> +#endif + +#include <grpc/support/alloc.h> +#include <grpc/support/host_port.h> +#include <grpc/support/string_util.h> + +#include "src/core/client_config/lb_policies/pick_first.h" +#include "src/core/iomgr/resolve_address.h" +#include "src/core/support/string.h" + +typedef struct { + /** base class: must be first */ + grpc_resolver base; + /** refcount */ + gpr_refcount refs; + /** subchannel factory */ + grpc_subchannel_factory *subchannel_factory; + /** load balancing policy factory */ + grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, + size_t num_subchannels); + + /** the address that we've 'resolved' */ + struct sockaddr_storage addr; + int addr_len; + + /** mutex guarding the rest of the state */ + gpr_mu mu; + /** have we published? */ + int published; + /** pending next completion, or NULL */ + grpc_iomgr_closure *next_completion; + /** target config address for next completion */ + grpc_client_config **target_config; +} sockaddr_resolver; + +static void sockaddr_destroy(grpc_resolver *r); + +static void sockaddr_maybe_finish_next_locked(sockaddr_resolver *r); + +static void sockaddr_shutdown(grpc_resolver *r); +static void sockaddr_channel_saw_error(grpc_resolver *r, + struct sockaddr *failing_address, + int failing_address_len); +static void sockaddr_next(grpc_resolver *r, grpc_client_config **target_config, + grpc_iomgr_closure *on_complete); + +static const grpc_resolver_vtable sockaddr_resolver_vtable = { + sockaddr_destroy, sockaddr_shutdown, sockaddr_channel_saw_error, + sockaddr_next}; + +static void sockaddr_shutdown(grpc_resolver *resolver) { + sockaddr_resolver *r = (sockaddr_resolver *)resolver; + gpr_mu_lock(&r->mu); + if (r->next_completion != NULL) { + *r->target_config = NULL; + /* TODO(ctiller): add delayed callback */ + grpc_iomgr_add_callback(r->next_completion); + r->next_completion = NULL; + } + gpr_mu_unlock(&r->mu); +} + +static void sockaddr_channel_saw_error(grpc_resolver *resolver, + struct sockaddr *sa, int len) {} + +static void sockaddr_next(grpc_resolver *resolver, + grpc_client_config **target_config, + grpc_iomgr_closure *on_complete) { + sockaddr_resolver *r = (sockaddr_resolver *)resolver; + gpr_mu_lock(&r->mu); + GPR_ASSERT(!r->next_completion); + r->next_completion = on_complete; + r->target_config = target_config; + sockaddr_maybe_finish_next_locked(r); + gpr_mu_unlock(&r->mu); +} + +static void sockaddr_maybe_finish_next_locked(sockaddr_resolver *r) { + grpc_client_config *cfg; + grpc_lb_policy *lb_policy; + grpc_subchannel *subchannel; + grpc_subchannel_args args; + + if (r->next_completion != NULL && !r->published) { + cfg = grpc_client_config_create(); + memset(&args, 0, sizeof(args)); + args.addr = (struct sockaddr *)&r->addr; + args.addr_len = r->addr_len; + subchannel = + grpc_subchannel_factory_create_subchannel(r->subchannel_factory, &args); + lb_policy = r->lb_policy_factory(&subchannel, 1); + grpc_client_config_set_lb_policy(cfg, lb_policy); + GRPC_LB_POLICY_UNREF(lb_policy, "unix"); + r->published = 1; + *r->target_config = cfg; + grpc_iomgr_add_callback(r->next_completion); + r->next_completion = NULL; + } +} + +static void sockaddr_destroy(grpc_resolver *gr) { + sockaddr_resolver *r = (sockaddr_resolver *)gr; + gpr_mu_destroy(&r->mu); + grpc_subchannel_factory_unref(r->subchannel_factory); + gpr_free(r); +} + +#ifdef GPR_POSIX_SOCKET +static int parse_unix(grpc_uri *uri, struct sockaddr_storage *addr, int *len) { + struct sockaddr_un *un = (struct sockaddr_un *)addr; + + un->sun_family = AF_UNIX; + strcpy(un->sun_path, uri->path); + *len = strlen(un->sun_path) + sizeof(un->sun_family) + 1; + + return 1; +} +#endif + +static int parse_ipv4(grpc_uri *uri, struct sockaddr_storage *addr, int *len) { + const char *host_port = uri->path; + char *host; + char *port; + int port_num; + int result = 0; + struct sockaddr_in *in = (struct sockaddr_in *)addr; + + if (*host_port == '/') ++host_port; + if (!gpr_split_host_port(host_port, &host, &port)) { + return 0; + } + + memset(in, 0, sizeof(*in)); + *len = sizeof(*in); + in->sin_family = AF_INET; + if (inet_pton(AF_INET, host, &in->sin_addr) == 0) { + gpr_log(GPR_ERROR, "invalid ipv4 address: '%s'", host); + goto done; + } + + if (port != NULL) { + if (sscanf(port, "%d", &port_num) != 1 || port_num < 0 || + port_num > 65535) { + gpr_log(GPR_ERROR, "invalid ipv4 port: '%s'", port); + goto done; + } + in->sin_port = htons(port_num); + } else { + gpr_log(GPR_ERROR, "no port given for ipv4 scheme"); + goto done; + } + + result = 1; +done: + gpr_free(host); + gpr_free(port); + return result; +} + +static int parse_ipv6(grpc_uri *uri, struct sockaddr_storage *addr, int *len) { + const char *host_port = uri->path; + char *host; + char *port; + int port_num; + int result = 0; + struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)addr; + + if (*host_port == '/') ++host_port; + if (!gpr_split_host_port(host_port, &host, &port)) { + return 0; + } + + memset(in6, 0, sizeof(*in6)); + *len = sizeof(*in6); + in6->sin6_family = AF_INET6; + if (inet_pton(AF_INET6, host, &in6->sin6_addr) == 0) { + gpr_log(GPR_ERROR, "invalid ipv6 address: '%s'", host); + goto done; + } + + if (port != NULL) { + if (sscanf(port, "%d", &port_num) != 1 || port_num < 0 || + port_num > 65535) { + gpr_log(GPR_ERROR, "invalid ipv6 port: '%s'", port); + goto done; + } + in6->sin6_port = htons(port_num); + } else { + gpr_log(GPR_ERROR, "no port given for ipv6 scheme"); + goto done; + } + + result = 1; +done: + gpr_free(host); + gpr_free(port); + return result; +} + +static grpc_resolver *sockaddr_create( + grpc_uri *uri, + grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, + size_t num_subchannels), + grpc_subchannel_factory *subchannel_factory, + int parse(grpc_uri *uri, struct sockaddr_storage *dst, int *len)) { + sockaddr_resolver *r; + + if (0 != strcmp(uri->authority, "")) { + gpr_log(GPR_ERROR, "authority based uri's not supported"); + return NULL; + } + + r = gpr_malloc(sizeof(sockaddr_resolver)); + memset(r, 0, sizeof(*r)); + if (!parse(uri, &r->addr, &r->addr_len)) { + gpr_free(r); + return NULL; + } + + gpr_ref_init(&r->refs, 1); + gpr_mu_init(&r->mu); + grpc_resolver_init(&r->base, &sockaddr_resolver_vtable); + r->subchannel_factory = subchannel_factory; + r->lb_policy_factory = lb_policy_factory; + + grpc_subchannel_factory_ref(subchannel_factory); + return &r->base; +} + +/* + * FACTORY + */ + +static void sockaddr_factory_ref(grpc_resolver_factory *factory) {} + +static void sockaddr_factory_unref(grpc_resolver_factory *factory) {} + +#define DECL_FACTORY(name) \ + static grpc_resolver *name##_factory_create_resolver( \ + grpc_resolver_factory *factory, grpc_uri *uri, \ + grpc_subchannel_factory *subchannel_factory) { \ + return sockaddr_create(uri, grpc_create_pick_first_lb_policy, \ + subchannel_factory, parse_##name); \ + } \ + static const grpc_resolver_factory_vtable name##_factory_vtable = { \ + sockaddr_factory_ref, sockaddr_factory_unref, \ + name##_factory_create_resolver}; \ + static grpc_resolver_factory name##_resolver_factory = { \ + &name##_factory_vtable}; \ + grpc_resolver_factory *grpc_##name##_resolver_factory_create() { \ + return &name##_resolver_factory; \ + } + +#ifdef GPR_POSIX_SOCKET +DECL_FACTORY(unix) +#endif +DECL_FACTORY(ipv4) +DECL_FACTORY(ipv6) diff --git a/src/core/client_config/resolvers/unix_resolver_posix.h b/src/core/client_config/resolvers/sockaddr_resolver.h index 57ace59e21..1b7a18f9c2 100644 --- a/src/core/client_config/resolvers/unix_resolver_posix.h +++ b/src/core/client_config/resolvers/sockaddr_resolver.h @@ -38,7 +38,13 @@ #include "src/core/client_config/resolver_factory.h" +grpc_resolver_factory *grpc_ipv4_resolver_factory_create(void); + +grpc_resolver_factory *grpc_ipv6_resolver_factory_create(void); + +#ifdef GPR_POSIX_SOCKET /** Create a unix resolver factory */ grpc_resolver_factory *grpc_unix_resolver_factory_create(void); +#endif #endif /* GRPC_INTERNAL_CORE_CLIENT_CONFIG_RESOLVERS_UNIX_RESOLVER_H */ diff --git a/src/core/client_config/resolvers/unix_resolver_posix.c b/src/core/client_config/resolvers/unix_resolver_posix.c deleted file mode 100644 index be515d2689..0000000000 --- a/src/core/client_config/resolvers/unix_resolver_posix.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include <grpc/support/port_platform.h> -#ifdef GPR_POSIX_SOCKET - -#include "src/core/client_config/resolvers/unix_resolver_posix.h" - -#include <string.h> -#include <sys/un.h> - -#include <grpc/support/alloc.h> -#include <grpc/support/string_util.h> - -#include "src/core/client_config/lb_policies/pick_first.h" -#include "src/core/iomgr/resolve_address.h" -#include "src/core/support/string.h" - -typedef struct { - /** base class: must be first */ - grpc_resolver base; - /** refcount */ - gpr_refcount refs; - /** subchannel factory */ - grpc_subchannel_factory *subchannel_factory; - /** load balancing policy factory */ - grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, - size_t num_subchannels); - - /** the address that we've 'resolved' */ - struct sockaddr_un addr; - int addr_len; - - /** mutex guarding the rest of the state */ - gpr_mu mu; - /** have we published? */ - int published; - /** pending next completion, or NULL */ - grpc_iomgr_closure *next_completion; - /** target config address for next completion */ - grpc_client_config **target_config; -} unix_resolver; - -static void unix_destroy(grpc_resolver *r); - -static void unix_maybe_finish_next_locked(unix_resolver *r); - -static void unix_shutdown(grpc_resolver *r); -static void unix_channel_saw_error(grpc_resolver *r, - struct sockaddr *failing_address, - int failing_address_len); -static void unix_next(grpc_resolver *r, grpc_client_config **target_config, - grpc_iomgr_closure *on_complete); - -static const grpc_resolver_vtable unix_resolver_vtable = { - unix_destroy, unix_shutdown, unix_channel_saw_error, unix_next}; - -static void unix_shutdown(grpc_resolver *resolver) { - unix_resolver *r = (unix_resolver *)resolver; - gpr_mu_lock(&r->mu); - if (r->next_completion != NULL) { - *r->target_config = NULL; - /* TODO(ctiller): add delayed callback */ - grpc_iomgr_add_callback(r->next_completion); - r->next_completion = NULL; - } - gpr_mu_unlock(&r->mu); -} - -static void unix_channel_saw_error(grpc_resolver *resolver, struct sockaddr *sa, - int len) {} - -static void unix_next(grpc_resolver *resolver, - grpc_client_config **target_config, - grpc_iomgr_closure *on_complete) { - unix_resolver *r = (unix_resolver *)resolver; - gpr_mu_lock(&r->mu); - GPR_ASSERT(!r->next_completion); - r->next_completion = on_complete; - r->target_config = target_config; - unix_maybe_finish_next_locked(r); - gpr_mu_unlock(&r->mu); -} - -static void unix_maybe_finish_next_locked(unix_resolver *r) { - grpc_client_config *cfg; - grpc_lb_policy *lb_policy; - grpc_subchannel *subchannel; - grpc_subchannel_args args; - - if (r->next_completion != NULL && !r->published) { - cfg = grpc_client_config_create(); - memset(&args, 0, sizeof(args)); - args.addr = (struct sockaddr *)&r->addr; - args.addr_len = r->addr_len; - subchannel = - grpc_subchannel_factory_create_subchannel(r->subchannel_factory, &args); - lb_policy = r->lb_policy_factory(&subchannel, 1); - grpc_client_config_set_lb_policy(cfg, lb_policy); - GRPC_LB_POLICY_UNREF(lb_policy, "unix"); - r->published = 1; - *r->target_config = cfg; - grpc_iomgr_add_callback(r->next_completion); - r->next_completion = NULL; - } -} - -static void unix_destroy(grpc_resolver *gr) { - unix_resolver *r = (unix_resolver *)gr; - gpr_mu_destroy(&r->mu); - grpc_subchannel_factory_unref(r->subchannel_factory); - gpr_free(r); -} - -static grpc_resolver *unix_create( - grpc_uri *uri, - grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, - size_t num_subchannels), - grpc_subchannel_factory *subchannel_factory) { - unix_resolver *r; - - if (0 != strcmp(uri->authority, "")) { - gpr_log(GPR_ERROR, "authority based uri's not supported"); - return NULL; - } - - r = gpr_malloc(sizeof(unix_resolver)); - memset(r, 0, sizeof(*r)); - gpr_ref_init(&r->refs, 1); - gpr_mu_init(&r->mu); - grpc_resolver_init(&r->base, &unix_resolver_vtable); - r->subchannel_factory = subchannel_factory; - r->lb_policy_factory = lb_policy_factory; - - r->addr.sun_family = AF_UNIX; - strcpy(r->addr.sun_path, uri->path); - r->addr_len = strlen(r->addr.sun_path) + sizeof(r->addr.sun_family) + 1; - - grpc_subchannel_factory_ref(subchannel_factory); - return &r->base; -} - -/* - * FACTORY - */ - -static void unix_factory_ref(grpc_resolver_factory *factory) {} - -static void unix_factory_unref(grpc_resolver_factory *factory) {} - -static grpc_resolver *unix_factory_create_resolver( - grpc_resolver_factory *factory, grpc_uri *uri, - grpc_subchannel_factory *subchannel_factory) { - return unix_create(uri, grpc_create_pick_first_lb_policy, subchannel_factory); -} - -static const grpc_resolver_factory_vtable unix_factory_vtable = { - unix_factory_ref, unix_factory_unref, unix_factory_create_resolver}; -static grpc_resolver_factory unix_resolver_factory = {&unix_factory_vtable}; - -grpc_resolver_factory *grpc_unix_resolver_factory_create() { - return &unix_resolver_factory; -} - -#endif diff --git a/src/core/client_config/subchannel.c b/src/core/client_config/subchannel.c index 5cf56d33eb..e9457cad2a 100644 --- a/src/core/client_config/subchannel.c +++ b/src/core/client_config/subchannel.c @@ -322,7 +322,8 @@ static void continue_connect(grpc_subchannel *c) { static void start_connect(grpc_subchannel *c) { c->backoff_delta = gpr_time_from_seconds( GRPC_SUBCHANNEL_INITIAL_CONNECT_BACKOFF_SECONDS, GPR_TIMESPAN); - c->next_attempt = gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), c->backoff_delta); + c->next_attempt = gpr_time_add( + gpr_now(GPR_CLOCK_MONOTONIC), c->backoff_delta); continue_connect(c); } @@ -639,7 +640,7 @@ static void subchannel_connected(void *arg, int iomgr_success) { if (c->connecting_result.transport != NULL) { publish_transport(c); } else { - gpr_timespec now = gpr_now(GPR_CLOCK_REALTIME); + gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC); gpr_mu_lock(&c->mu); GPR_ASSERT(!c->have_alarm); c->have_alarm = 1; @@ -707,6 +708,12 @@ void grpc_subchannel_call_unref( } } +char *grpc_subchannel_call_get_peer(grpc_subchannel_call *call) { + grpc_call_stack *call_stack = SUBCHANNEL_CALL_TO_CALL_STACK(call); + grpc_call_element *top_elem = grpc_call_stack_element(call_stack, 0); + return top_elem->filter->get_peer(top_elem); +} + void grpc_subchannel_call_process_op(grpc_subchannel_call *call, grpc_transport_stream_op *op) { grpc_call_stack *call_stack = SUBCHANNEL_CALL_TO_CALL_STACK(call); diff --git a/src/core/client_config/subchannel.h b/src/core/client_config/subchannel.h index a23a623277..d1cd33b2af 100644 --- a/src/core/client_config/subchannel.h +++ b/src/core/client_config/subchannel.h @@ -100,6 +100,9 @@ void grpc_subchannel_del_interested_party(grpc_subchannel *channel, void grpc_subchannel_call_process_op(grpc_subchannel_call *subchannel_call, grpc_transport_stream_op *op); +/** continue querying for peer */ +char *grpc_subchannel_call_get_peer(grpc_subchannel_call *subchannel_call); + struct grpc_subchannel_args { /** Channel filters for this channel - wrapped factories will likely want to mutate this */ |